A pet store sells nylon tunnels for dog agility courses. If a tunnel is 6 feet long and 1.5 feet in diameter, how much nylon is used to make it?
-
Since fabric is generally measured in square yards,
6*1.5π/9 = 9π/9 = π sq yds ≈ 3.14 sq yds
(9 square feet would be correct, but 9 feet squared = 81 square feet)
6*1.5π/9 = 9π/9 = π sq yds ≈ 3.14 sq yds
(9 square feet would be correct, but 9 feet squared = 81 square feet)
-
Find the circumference, and multiply by the length.
1.5π x 6
4.7123 x 6
28.2738 feet squared of nylon
1.5π x 6
4.7123 x 6
28.2738 feet squared of nylon
-
9 feet squared, right?